Zoom is a commonly used photography feature; it allows the user to shift smoothly from a long shot to a close-up and vice versa. Optical zoom employs camera optics (a lens) to magnify the object, while digital zoom crops and up scales the input image. Unlike optical zoom, digital zoom reduces resolution and, as a result, diminishes image quality.
How to Best Utilize Dual Cameras for Enhanced Image Quality
While dual camera smartphones are becoming commoditized, the first few triple camera harbingers are on the horizon, starting with Huawei’s P20 Pro just launched this week. Challenges and rewards are explained, several configurations are analyzed.